Abstract: A cart is described and claimed. The cart is used for moving an delivering large planar objects to an object receiving table having a substantially flat, horizontal surface. The cart has a base and a rack removably mounted atop the base. The base includes a pivot structure for pivotally fixing the base at a predetermined location, and at least one (preferably three) wheeld base mechanisms arranged to permit the base structure to pivot about that pivot structure into and out of a delivery position in which the rack bottom is located substantially coplanar with and adjacent to the top of the object receiving table.

Abstract: A friction clutch assembly that is adapted particularly for use in a powertrain for a vehicle for controlling transfer torque to traction wheels for the vehicle. The torque capacity of the clutch assembly is modified by adjusting the effective clutch engaging force. Pressure balance springs oppose a primary clutch spring engaging force. The compression distance of the pressure balance springs is controlled to achieve an effective clutch engaging force that accommodates varying operating torque requirements.

Abstract: A friction clutch assembly that is adapted particularly for use in a powertrain for a vehicle for controlling transfer torque to traction wheels for the vehicle. The torque capacity of the clutch assembly is modified by adjusting the effective clutch engaging force. Pressure balance springs oppose a primary clutch spring engaging force. The compression distance of the pressure balance springs is controlled to achieve an effective clutch engaging force that accommodates varying operating torque requirements.

Abstract: A fifth wheel trailer hitch has a mounting plate rigidly mountable on a supporting surface. A pair of spaced upright ends are removably mountable on the mounting plate. The hitch has a cross member pivotally mounted with the upright ends. A coupler is mounted on the upper side of the cross member to engage a coupler on a trailer.